What is CVE-2019-0798?

CVE-2019-0798 is a medium-severity vulnerability in Microsoft Lync_server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-04-09.

How severe is CVE-2019-0798?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Microsoft Lync_server

CVE-2019-0798

A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing Vulnerability'.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.021 (79.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Microsoft Lync_server — versions 2013
Microsoft Lync Server 2013 — versions July 2018 Update
Microsoft Skype_for_business_server — versions 2015
Microsoft Skype For Business Server 2015 — versions March 2019 Update

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2019-0798?: CVE-2019-0798 is a medium-severity vulnerability in Microsoft Lync_server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-04-09.
How severe is CVE-2019-0798?: Medium severity. CVSS v3 base score is 6.1 out of 10.